Specialized biological

Department of Medical Biochemistry and Biology, University of Bari, Italy; 2Department of Zoology, Laboratory of Histology and Comparative Anatomy, University of Bari, Italy; 3Center for the Study of Mitochondria and Energy Metabolism (CNR) Bari, Italy Mitochondrial bioenergetic impairment has been found in the organelles isolated from rat liver during the prereplicative phase of liver regeneration.

9p system191 01-06-2013 37 4   Download

The peptide hormone endothelin transmits various signals throughGprotein-coupled receptors, the endothelin type A (ETAR) and B (ETBR) receptors. Caveolae are specialized lipid rafts containing polymerized caveolins. We examined the interaction of ETBR with caveolin-1, expressed in Sf9, COS-1, and HEK293 cells, and its effects on the subcellular distribution and the signal transduction of ETBR.

12p fptmusic 16-04-2013 28 2   Download

One of the hallmarks of cAMP is its ability to inhibit proliferation in many cell types, but stimulate proliferation in others. Clearly cAMP has cell type specific effects and the outcome on proliferation is largely attributed to crosstalk from cAMP to the RAS⁄RAF⁄mitogen-activated protein kinase (MAPK) and extracellular signal-regulated kinase (ERK) kinase (MEK)/ ERK pathway. We review the crosstalk between these two ancient and con-served pathways, describing the molecular mechanisms underlying the interactions between these pathways and discussing their possible biological importance....

14p fptmusic 11-04-2013 41 3   Download

d-Crystallin is the major structural protein in avian and reptilian eye lenses, and confers special refractive properties. The protein is a homotetramer arranged as a dimer of dimers. In the present study, the roles of the side chains of Glu267, Lys315, and Glu327, which provide hydrogen bonds at the double dimer interface, were investigated. Hydrophobic side chain sub-stitution led to all mutant proteins having an unstable dimer interface.

11p vinaphone15 25-02-2013 36 2   Download

ZF-RNase-3 is one of the RNases from zebrafish (Danio rerio) with special (i.e. noncatalytic) properties. These include angiogenic and bactericidal activities. Given the interest of fish RNases as host-defense effectors, we studied the mechanism of the bactericidal action of ZF-RNase-3 onEscheri-chia coli as a model Gram-negative bacterium.

8p mobifone23 21-01-2013 42 4   Download

Xylanase A from the phytopathogenic bacteriumErwinia chrysanthemiis classified as a glycoside hydrolase family 30 enzyme (previously in family 5) and is specialized for degradation of glucuronoxylan. The recombinant enzyme was crystallized with the aldotetraouronic acidb-D-xylopyranosyl-(1fi4)-[4-O-methyl-a-D-glucuronosyl-(1 fi2)]-b-D-xylopyranosyl-(1 fi4)-D-xylose as a ligand.

12p cosis54 05-01-2013 54 5   Download

Specifically, the science of physics to the laws of natural movement, from a macroscopic (particles that make up matter) to larger scales (planets, galaxies and the universe). In English, from physics (physics) is derived from Greek φύσις (phusis) means natural and φυσικός (phusikos) is of the nature. The main object of study now include physical matter, energy, space and time.

7p phalinh14 07-08-2011 60 5   Download

Collection of research reports best universities honored author. Two. Le Van Dung, a number average convergence theorem for two index array of random elements in Banach spaces with integrable conditions are ... Science (in Latin Scientia, meaning "knowledge "or" understanding ") is the efforts to implement the invention, and increased knowledge of the human understanding of how the operation of the physical world around them.

10p phalinh14 07-08-2011 67 4   Download

Physics has an important role in our life. Without physics and the work of physicists, our modern life would not exist. Using physics, people created machines, instruments and some different divices from the crudest to the most modern aspect. Techology is developed more rapidly, more modern day by day. Moreover, all other natural sciences- example chemistry, biology, medicinedepend upon physics for the foundations of their knowledge.

17p tieulaubau 21-06-2011 88 5   Download